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EP1345817A4 - Leicht zu öffnende deckel sowie dose für pulver - Google Patents

Leicht zu öffnende deckel sowie dose für pulver

Info

Publication number
EP1345817A4
EP1345817A4 EP01986289A EP01986289A EP1345817A4 EP 1345817 A4 EP1345817 A4 EP 1345817A4 EP 01986289 A EP01986289 A EP 01986289A EP 01986289 A EP01986289 A EP 01986289A EP 1345817 A4 EP1345817 A4 EP 1345817A4
Authority
EP
European Patent Office
Prior art keywords
closure
easy open
combination
escape
grooves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01986289A
Other languages
English (en)
French (fr)
Other versions
EP1345817A1 (de
Inventor
George B Diamond
Ralph H Helmrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1345817A1 publication Critical patent/EP1345817A1/de
Publication of EP1345817A4 publication Critical patent/EP1345817A4/de
Withdrawn legal-status Critical Current

Links

Classifications

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    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
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    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
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    • B65D17/506—Rigid or semi-rigid members, e.g. plugs
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    • B65D2205/00—Venting means
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    • B65D2543/00092—Shape of the outer periphery curved circular
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure

Definitions

  • This invention relates to a reclosable easy open closure or end for containers such as cans, jars, bottles and the like, and, more particularly, to such an end for use in sealing containers containing powdered or granulated material.
  • Easy open ends are can ends (tops) which have a score line or similar weakening segment which weakens the end against a tearing type force but maintain a strength against a vacuum and/or a pressure type force.
  • a pull tab is part of the end and by pulling on the tab the segment of the end which is inside the score line tears off, thus opening the can without the use of a can opener.
  • EOE adhesively sealed EOE
  • drinks soft drinks, beer, non-carbonated drinks, juices and similar products
  • a small section of the end is torn off (or sometimes pushed in and left on inside the can or lifted and left on the outside of the can).
  • the part that is torn off is at present usually discarded and no provision for a reseal is generally made - the cans generally being of such size that they are single-use cans or, if multi-use cans, the contents are either transferred to a different closeable container (such as a freezer or refrigerator sealable container) or the top of the opened can is wrapped with foil or plastic.
  • a different closeable container such as a freezer or refrigerator sealable container
  • an easy open end which in these cases can also be a membrane (scored or unscored) glued or heat sealed to the container
  • a separate plastic snap-on cover is usually also provided, the container itself can be metal, plastic or composite (paper-foil-plastic).
  • membranes are not used where the products are under substantial pressure or vacuum.
  • Patents 5,758,793, 5,617,968, 5,511,679, 5,125,528, 5,085,339, 5,050,763, 5,042,680, 5,020,686, 4,724,979, 4,724,978, 4,699,290, 4,682,706, 4,660,735, 4,529,100 and 3,557,998.
  • the partly open end makes it difficult to remove the contents, and the plastic ring to which the end is sealed makes it much more expensive, i.e., two parts instead of one part.
  • the end is also awkward to reseal since two hands have to be used, one to force it over the rim or other protrusion and the other to hold the can against this force.
  • a hinged flap is also required and part of the lid stays on the can even if it is not a separate member, or a tear strip is required.
  • This group includes U.S. Patents: 5,145,085, 5,085,339, 5,050,763., 4,741,450, 4,724,979, 4,724,978, 4,699,290, 4,473,168, 4,434,907, 4,433,793, 4,427,128, 4,385,708,
  • an easy openable closure for a can which includes means, such as a flap or skirt, which operates when the closure is removed from the can to allow gas to escape from the can while preventing escape of the contents of the can.
  • Fig.1 shows a side view of a can and a sealed-on resealable easy open end in accordance with the invention of U.S. Patent No. 6,193,094 Bl.
  • Fig. 2 shows a side view of a can and a sealed-on resealable easy open end in accordance with the present invention.
  • Fig. 3 is a plan view of a flap used in the can and sealed-on reasealable easy open end of Fig. 2.
  • Fig. 4A is a side cross-sectional view of a can and the sealed-on reasealable easy open end in accordance with an alternative embodiment of the invention
  • Fig. 4B is a top view of a variation of the end shown in Fig. 4A
  • Fig. 5 is a side cross-sectional view of a can and a sealed-on resealable easy open end in accordance with still another embodiment of the invention.
  • Fig. 6 is a side cross-sectional view of a can and a sealed-on resealable easy open end in accordance with yet another embodiment of the invention.
  • the system of U.S. Patent No. 6,193,094 Bl includes a resealable easy open end 10 sealed to a can 11.
  • the end 10 has a pull tab
  • the can 1 1 has a curled inner portion 16 with a recess 17 or indentation which forms upper and lower ledges 18 and 19, respectively.
  • the tab is moved upwardly. Then a force is applied to the tab 12, which causes the tab to peel away from its seal 13 with the lower ledge 19.
  • the end 10 may then be removed from the can 11 and then resealed by pushing the end downwardly to the periphery until the easy open end 10 snaps into the recess 17.
  • Figs. 2 and 3 there is shown an embodiment of the invention especially suited for sealing a can 11 containing a granulated material, such as powder.
  • the embodiment uses a flap 20 in the bottom of the REOE 10 adjoined to the tab end and which flap 20 is so shaped as to rub along the edge 21 of the sealing ledge 19, which is part of the can, during the initial opening action and which flap 20 has narrow grooves 22 on its rubbing face 23, as best shown in Fig.
  • the flap 20 can have small holes or porosities (not shown) through which the pressurizing gas can escape.
  • the flap 20 can also be without grooves and ridges and the grooves and ridges can be on the part 21 of the can along which the flap 20 rubs or that part of the can or the part immediately above the rubbing part can have small holes.
  • the cross sectional size of the grooves or holes is preferably less than the grain size of the powder in the can so as to allow any gas to escape while preventing escape of any powder.
  • a reverse curvature along the bottom end of the flap 20 makes it easy to replace the REOE. No orientation of the REOE is needed either to first seal it or for reclosing the can.
  • the grooves 22 can be curved or straight and may be of different depths, widths or may be a series of overlapping ridges of projection so that the escape path traps the powder but allows the pressurizing gas to escape without entraining any powder.
  • the length, elasticity etc., of the flap 20 can be adjusted to correspond to the size, lightness and other properties of the powder so as to obtain maximum powder trapping for minimum flap material usage.
  • FIG. 4A Another embodiment of the invention having a full open resealable easy open end is shown in Fig. 4A with a variant of the end shown in Fig. 4B.
  • a can 40 and an easy open end 41 having a depending annular skirt 42 Referring first to Fig. 4A, there is shown a can 40 and an easy open end 41 having a depending annular skirt 42.
  • the easy open end 41 may be advantageously made by vacuum forming or by inj ection molding so that an integral pull tab 46 is formed.
  • the annular skirt 42 has holes or grooves therein.
  • the annular skirt 42 may extend about the entire periphery of the easy open end or may extend only in an area slightly larger than the extent of the initial opening resulting when the easy open end is removed from the can, as shown in Fig. 4B.
  • a two part end (not shown) may also be employed.
  • a sealing adhesive (not shown) can be applied to both or either the under side of the easy open end 41 and/or the sealing surface 45 of the can.
  • FIG. 5 Another embodiment of a can and easy open end is shown in Fig. 5. As shown in Fig. 5, this embodiment includes a can 50 and an easy open end 51 having a depending annular collar 52 with a small projection or a detent ring 53 extending outwardly therefrom.
  • the top of the can includes a flat sealing surface
  • the collar 52 may include holes or grooves (as shown in Fig. 4A), or alternatively, the holes or grooves 53 may be formed in the can itself on the portion 55.
  • the easy open end shown in U.S. Serial No. 60/265,481 comprises a plastic (or plastic in combination with other materials, or some other suitable resilient material) cover 61 shaped to snap over the open end of a can 60 with a peelable seal being formed between the underside of the cover and the top of the opening of the container.
  • This seal can be an adhesive material that bonds the two parts together and the bond can be activated by a variety of means including thermal energy, ultrasonics, UV or other radiation, RF energy, inertial or spin welding, etc.
  • the seal can also be made by simply melting a thin layer of the resilient material of the cover 61 where it is in contact with the open end of the can 60 causing the cover
  • a ledge or detent 62 in the cover snaps over a matching ledge or detent 63 on the can 60 and forms a seal between the can 60 and the cover 61.
  • the cover 61 is provided with a depending skirt 64.
  • holes or grooves 66 may be provided in the skirt 64, or alternatively, may be provided in the can 60.
  • the term "can” as used herein and in the appended claims means any receptacle, such as a metal can, a plastic container, a glass container or any similar object with which it is desired to use a resealable easy open end.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
EP01986289A 2000-09-12 2001-09-11 Leicht zu öffnende deckel sowie dose für pulver Withdrawn EP1345817A4 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US23208500P 2000-09-12 2000-09-12
US232085P 2000-09-12
US26548101P 2001-01-31 2001-01-31
US265481P 2001-01-31
PCT/US2001/028460 WO2002028738A1 (en) 2000-09-12 2001-09-11 Easy open end and can for powders

Publications (2)

Publication Number Publication Date
EP1345817A1 EP1345817A1 (de) 2003-09-24
EP1345817A4 true EP1345817A4 (de) 2004-12-08

Family

ID=26925674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01986289A Withdrawn EP1345817A4 (de) 2000-09-12 2001-09-11 Leicht zu öffnende deckel sowie dose für pulver

Country Status (7)

Country Link
US (1) US6688486B2 (de)
EP (1) EP1345817A4 (de)
CN (1) CN1212958C (de)
AU (1) AU2002223178A1 (de)
CA (1) CA2422146A1 (de)
MX (1) MXPA03002181A (de)
WO (1) WO2002028738A1 (de)

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EP1475314B1 (de) * 2003-05-07 2005-07-27 Arta Plast Ab Behälter mit Deckel
US20050077298A1 (en) * 2003-10-14 2005-04-14 Sonoco Development, Inc. Easy-opening container and closure with radiation-weakened bond and method therefor
US20060042982A1 (en) * 2004-09-01 2006-03-02 Goodwin G W Jr Welding rod container
DK1645517T3 (da) * 2004-10-11 2008-09-01 Impress Group Bv Genlukkeligt folielåg
EP1669147B1 (de) 2004-12-13 2009-03-25 Schunk GmbH & Co. KG Spann- und Greiftechnik Spanneinrichtung
FR2885598B1 (fr) * 2005-05-11 2010-02-19 Crown Packaging Technology Inc Boite de conditionnement et procede pour sa fabrication
US20060255052A1 (en) * 2005-05-13 2006-11-16 Svitak Steven J Container kit with graspable lid
PL1726529T3 (pl) 2005-05-25 2011-07-29 Ball Packaging Europe Gmbh Wieczko ze słupkami prowadzącymi dla pojemnika
EP1899231A2 (de) * 2005-05-25 2008-03-19 Ball Packaging Europe GmbH Blechdeckel mit führungssäulen für einen behälter
US8403174B2 (en) * 2006-08-28 2013-03-26 Kraft Foods Global Brands Llc Snap resealing closure for a container
ES2612745T3 (es) * 2006-12-12 2017-05-18 Stora Enso Oyj Una tapa de un envase, un método para fabricar la misma y un envase sellado con una tapa y un método para sellar un envase
WO2008103343A1 (en) * 2007-02-23 2008-08-28 Sonoco Development, Inc. Hinged overcap from a container
KR101066643B1 (ko) * 2009-10-28 2011-09-21 씨제이제일제당 (주) 리드필름 일체형 밀봉캡을 가지는 용기구조체
US8272526B1 (en) * 2011-03-22 2012-09-25 Vovan Jane N Tamper evident pull-tab container
EP2607256A1 (de) * 2011-12-20 2013-06-26 Ardagh MP Group Netherlands B.V. Behälter mit abziehbarer Abdichtmembran zur Aufnahme eines pulverförmigen Produkts und zum Erzeugen eines inneren Unterdrucks
GB201214716D0 (en) * 2012-08-17 2012-10-03 Crown Packaging Technology Inc Metal cans with peelable lids
US9546018B1 (en) * 2013-08-06 2017-01-17 Smart-Tab, Llc Enhanced tamper-evident container
WO2017066218A1 (en) * 2015-10-12 2017-04-20 Emerson Process Management Regulator Technologies, Inc. Control member for a fluid regulating device
US10913211B2 (en) 2017-05-30 2021-02-09 Campbell Soup Company High rate ultrasonic sealer
US11181221B1 (en) * 2019-07-23 2021-11-23 William Randall Tucker Pull off pipe cap

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US5145085A (en) * 1992-01-29 1992-09-08 University Of Wisconsin Initially sealed reclosable container closure
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Also Published As

Publication number Publication date
US6688486B2 (en) 2004-02-10
WO2002028738A1 (en) 2002-04-11
US20030150863A9 (en) 2003-08-14
MXPA03002181A (es) 2004-05-04
EP1345817A1 (de) 2003-09-24
CA2422146A1 (en) 2002-04-11
CN1212958C (zh) 2005-08-03
AU2002223178A1 (en) 2002-04-15
CN1455752A (zh) 2003-11-12
US20020063131A1 (en) 2002-05-30

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